05679943 is referenced by 245 patents and cites 17 patents.

A hand-held terminal for receiving, storing and transmitting information is disclosed. The terminal has a keyboard, a display and is powered by internal, rechargeable batteries. An internal battery charging circuit includes a fixed voltage power supply which is controlled to provide a constant current charging current. A low-power radio frequency transceiver, for example, of a spread spectrum technology (SST) device is provided for receiving and transmitting information between the terminal and a base radio transceiver. A modular, magnetic credit card reader is operably and removably attached to the terminal and is interchangeable with a scanner of the type which can read bar codes or the like. Modules display screens, processor/memory modules, modular keyboards, and operating handles are also shown. A modular, compact printer can also be attached to the hand held terminal. Interactive pen based display screens can be used to allow information to be input directly on the screen.

Title
Hand-held terminal with display screens, interactive screens, magnetic credit card readers, scanners, printers and handlers
Application Number
345145
Publication Number
5679943
Application Date
June 7, 1995
Publication Date
October 21, 1997
Inventor
John K Rohde
Cedar Rapids
IA, US
Jon Rasmussen
Mt. Vernon
IA, US
Steven E Koenck
Cedar Rapids
IA, US
Darald R Schultz
Cedar Rapids
IA, US
Agent
Simmons Perrine Albright & Ellwood
Assignee
Norand Corporation
IA, US
IPC
G06F 7/10
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